{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SMAJ26CA-TR","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"SMAJ26CA-TR","canonicalUrl":"https://icboms.com/stmicroelectronics/SMAJ26CA-TR","factsUrl":"https://icboms.com/api/mcp/products/SMAJ26CA-TR","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics SMAJ, TRANSIL™, Type Zener, SMAJ26CA-TR, Bidirectional TVS Diode, 26V Reverse Standoff, 53.5V Clamp, 400W Peak Pulse, DO-214AC SMA, Surface Mount, -55°C~150°C.","salesMarkdown":"## Why a bidirectional TVS in this package? The SMAJ26CA-TR is a bidirectional Zener-based transient voltage suppressor from ST's SMAJ TRANSIL™ family. Its single bidirectional channel clamps both positive and negative transients above 26V reverse standoff to 53.5V maximum at the peak pulse current of 43A (8/20µs waveform). No power line protection here — this part is meant for data, I/O, or secondary-side DC bus clamping where you need both polarities covered in one DO-214AC package. The 53.5V max clamping at 43A (8/20µs) tells you the highest voltage the protected node will see during a surge. If your downstream ICs are rated for, say, 60V absolute maximum, this clamp gives about 6V of margin — tight but workable. ## Package and mounting — field-swap reality The package is a standard surface-mount type, reflow-solderable with typical MSL 1 handling. No exposed pad, no special thermal vias — just a two-pad footprint. For a field-service swap, you'll need a hot-air station or a soldering iron with a fine tip; it's not socketed, so plan for rework if you're replacing it on site. The package marking should include the polarity band for the cathode, but since this is bidirectional, orientation doesn't matter — a nice touch for the repair kit. STMicroelectronics lists the SMAJ26CA-TR as Active.","metaTitle":"STMicroelectronics SMAJ26CA-TR TVS Diode, 26V Bidirectional","metaDescription":"STMicroelectronics SMAJ26CA-TR bidirectional TVS diode, 26V standoff, 53.5V clamp, 400W peak pulse power. Active, surface-mount DO-214AC.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"STMicroelectronics","Type":"Zener","Series":"SMAJ, TRANSIL™","Package":"Tape & Reel (TR); Cut Tape (CT)","Applications":"General Purpose","Mounting Type":"Surface Mount","Package / Case":"DO-214AC, SMA","Product Status":"Active","lifecycle_stage":"eol_hot","Power - Peak Pulse":"400W","Base Product Number":"SMAJ26","Operating Temperature":"-55°C~150°C(TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"SMA (DO-214AC)","Voltage - Breakdown (Min)":"28.9V","Voltage - Clamping (Max) @ Ipp":"53.5V","Voltage - Reverse Standoff (Typ)":"26V","Current - Peak Pulse (10/1000µs)":"43A (8/20µs)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.4200","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cb45a0c551131e855efff64db719fd1e.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/SMAJ26CA-TR/alternatives.json"},"ai":{"faq":[{"question":"Is SMAJ26CA-TR bidirectional?","answer":"Yes, it has one bidirectional channel, meaning it clamps both positive and negative transients symmetrically. No orientation worries on the board."},{"question":"Is SMAJ26CA-TR RoHS compliant?","answer":"The datasheet or ST's compliance matrix will confirm, but no lead-free flag appears in the listing."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/SMAJ26CA-TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/SMAJ26CA-TR when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}